Rinse the hearts of palm noodles under cold water in a colander and drain well; set aside.
Heat a large skillet over medium-high heat. Add 1 teaspoon sesame oil and swirl to coat the pan.
Add 8 ounces ground chicken and cook 5 minutes, breaking up with a spatula, until browned and cooked through.
Push the cooked chicken to one side of the skillet and reduce heat to medium.
Add 3 minced garlic cloves and 1 tablespoon grated ginger to the empty side of the skillet and cook about 30 seconds, stirring, until fragrant.
Add the drained hearts of palm noodles to the skillet, stir to combine with the garlic and ginger, and cook 1–2 minutes to heat through.
Pour in 1/4 cup reduced sodium soy sauce, 1 tablespoon hoisin, and 1 tablespoon sambal oelek; stir and cook 2–3 minutes, stirring occasionally, until the sauce is warmed and flavors meld.
Stir everything together to evenly coat the noodles and chicken, then transfer to two plates.
Top with scallions and sesame seeds, and add more sambal oelek if desired.